Wiring Of The Resistance Thermomester Sensor - Mitsubishi FX3U-4AD User Manual

FX /FX /FX PLC User's Manual - Analog Control Edition
3G 3U 3UC
FX -4AD-PNK-ADP (4-channel Resistance Thermometer Data Input)
3U
3.4 Selection of the Resistance Thermometer Sensor
Select the Pt1000/Ni1000 (2-wire or 3-wire sensors) resistance thermometer sensor.
3.5

Wiring of the Resistance Thermomester Sensor

Wiring depends on the resistance thermometer sensor type selected. Refer to the following wiring diagrams:
*1. 24V DC service power supply of the FX
*2. When using a 2-wire temperature sensor type, short-circuit the [L
For the lead wire use a 10Ω resistance or less per line.
*3. Separate the cable of the platinum resistance themometer sensor from the other power cables or
areas easily affected by inductive noise (of the commercial power, etc.).
J-14
Resistance thermometer
wiring
3-wire
sensors
Terminal
*3
Shield wire
type block
2-wire
sensors
type
*2
External power supply
wiring
*1
24V DC
Class-D grounding
L +, L -, I -, ch : represents the channel number.
3.4 Selection of the Resistance Thermometer Sensor
PNK-ADP
+5V
47kΩ 47kΩ
ch
1MΩ
L +
L -
1MΩ
I -
+5V
47kΩ 47kΩ
1MΩ
ch
L +
L -
1MΩ
I -
+5V
24+
24-
/FX Series PLC can also be used.
3G 3U
-] terminal and the [I -] terminal.
3 Wiring